Cartridge-vent detector.



No. 800,31l.

PATENTBD SEPT. 26, 1905.

0. M. LISSAK. CARTRIDGE VENT DETECTOR.

APPLIOATION FILED saw 20 1904 2 SHEETS-SHEET 1.

l/VYf/VTUR QM. i Lad/0 M7 FZW A nag/mg No. 800,311. PATENTED SEPT; 26, 1905.

I 0. M. LISSAK. CARTRIDGE VENT DETECTOR.

2 SHEETS-SHEET 2.

ATTORNEY. 5

35 mode of operation need not herein be spe- To all whom it may concern:

' UNI D. s'rAT s PATENT oFFIon- Specification of Letters Patent.

Patented Sept. 26, 1905.

Application filed. September 20. 1904. Serial No. 225,218.

Be it known that I, ORMoNn' M. LISSAK, a citizen of the United States, residing at Westpoint, county of Orange, and State of New York, have invented a new and useful Improvement in Cartridge-Vent Detectors, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, which form a part of this specification.

' Inthe manufacture of cartridges and the like in which a primary charge is used it is essential that there should be a vent, so that the explosion of the primary charge will be,

communicated through this vent to the explosive material. In the manufacture of cartridges a vent is' formed before the primary charge is added. Y

The object of my invention is to provide mechanism which'will automatically test the cartridge and determine whether the vent has been formed and properly formed before the primer is inserted.

I will first describe the specific mechanism for carrying out my invention illustrated in the accompanying drawings and then point out the invention in the claims.

In the drawings, Figure 1 is a top plan view. Fig. 2 is an elevation. Fig. 3 is an elevation of a detail. Fig. 4 is another elevation, partially in section, of Fig. 8. Fig. 5 is a plan view of Figs. 3 and 4.

I have illustrated my invention as applied to a priming-machine of the well-known character, and its specific construction and cifically described, as it forms no part of my invention. a

A is a rotary table B B, the curved fixed walls,.f orming between them the channel B C is the rotary priming-table, which is given a step-by-step rotary'movement by the well-known mechanism. (Not shown.) On this table are the'grooves or pockets 0 for the reception of the cartridges. The cartridges in the rotation of the table by means of the guides or channel B are brought opposite and contiguous to one of the pockets 0 and are injected therein by-the ram D slidin in groove 01. This ram has the slotted be l-crank'lever d, pivoted at d connected to a spring 6?, which normally holds it in its outward position. The ram is intermittently retracted to allow a cartridge to pass in front of itby means of thelever (1 working in .a slot (2 in the frame of the machine.

This lever is pivoted at d and intermittently operated in the well known manner by means of a cam d on shaft (i driven by mechanism, (not shown,) so that as a cartridge approaches the plate D' the rod d strikes the of spring (Z and thus'allowing a cartrid e to come in front of plate D. When the ever d is moved in the opposite direction, the sprin 4 d again becomes active and moves the-p ate D outward, forcing one of the car- "lever d, retracting the ram against the action tridges into a'pocket c, the strength of the spring being, as is well known, just sufficient to force the cartridge into the. pocket. All this is of old and well-known construction.

Mounted so as to move longitudinally u on the vertical rods E and E", secured to t e frame of the machine, isthe frame F. Projecting from the frame F is the bracket f to which the rod f is secured by a pin passing through the rod into the bracket.

The rod f" at the other end is secured in asimilar manner to the bar f which is rigidly connectedto the crank f mounted upon the crank-pin f This crank is operated by a cam f 6 on shaft 61*, so that it is given a movement which will cause the frame F to move on the rods E E when the at rest.

I G is a'guide connected to the frame F, in which moves the piston H, having at its outer end the pin h. Surrounding the piston H is a spiral spring h The arrangement and positlon of the parts are such that in the movement of the frame F thepin h moves in alinement with the vent-opening in the cartridge. If the vent-opening be properly made, the pin is of such size that it asses through the vent, and the piston I and frame -F have no movement independent of each other. When, however, the vent is not made or not properly, made, the pin strikes the metal, and in the further forward movement of-the frame the pin does not move, causing a relative backward movement of the piston H. I indicate this last condition, and thus the lack of vent or proper vent, in the following manner: J is a battery. Any other source of current-sup 1y may be used. The wire y' runs from one po e of this battery and is connected to a part of the machine in electrical connection with frame F, and therefore with plunger. H. The wire 9" from the other pole ofgthe battery is connected to the late K, carried by, but electrically insupriming-table is IOO ated from, the frame F. Projecting from this plate K is the spring-arm L, which projects in line with the rear end of plunger H. With a vent formed and properly formed in the movement of frame F the plunger and frame move in unison, and the plunger H does not contact with the spring arm L. If, however, the vent is not formed or is not properly formed, in the forward movement of the frame F the pin it will strike the cartridge metal, holding the plunger II from further movement, and there will be a relative movement of the plunger with referenceto the frame, compressing spring 7L3 and causing the plunger to contact with the spring-arm L, and the circuit will be closed. During the retracting movement of the frame F the spring k returns the piston H to its normal position and breaks the electrical circuit. I can place any desired indicating device in this circuit which will indicate when this result occurs. I have shown a bell M, which will ring when this occurs, and the circuit is closed. In order to hold the cartridge with certainty in the osition to be in proper alinement with the p unger H, I employ a guide N, mounted on the end of rod E and on stud n, provided with a projecting spring N. When in the rotation of the table the cartridge reaches the guide, the spring holds it in such position in the pocket as to be in alinement with plunger movement. When the bell rings, it indicates a cartridge without a vent or with an imperfect vent, and such cartridge may readily be removed by moving the guide N, covering the mouth of the pockets 0 from the end of rod E and stud n, and by hand the defective cartridge-may be removed.

Having now fully described my invention, what I claim, and desire to protect by Letters Patent, is

1. In a vent-detector, the combination, with a support for a cartridge, of an electric circuit normally open, there being a circuit closer in said circuit in line with the vent of a cartridge upon said support, means to recipcate said circuit-closer toward and from and in line of said vent, a support for said circuitcloser in which said circuit-closer has a movement to close its circuit whenin its reciprocation it strikes an obstruction.

2. In a vent-detector, the combination, with a support for a cartridge, of an electric circuit, there being a circuit-closer in said circuit, means to reciprocate said circuit-closer in line with the vent of a cartridge upon said support, and means to operate said circuitcloser to close the circuit when the circuitcloser, in its reciprocation, meets an obstruction.

3. In a ventdetector, the combination with a support for a cartridge, of an electric circuit, normally open, having thereon a circuit-closer com rising a frame, a guide, a piston in said gui e, a pm connected to said p1s- 1 ton, means to reciprocate said frame, with said pin in line with the vent of a cartridge upon said support, and connection whereby said circuit is closed when said pin meets an obstruction and said piston moves in said guide.

4. In a vent-detector, the combination, with a support for a cartridge, of a frame, a guide, a piston in said guide, a pin connected to said piston, means to reciprocate said frame, with said pin in line with the vent of a cartridge upon said support, an electric circuit, one pole of which is electrically connected with said frame, a plate carried by, but insulated from, saidframe, said plate being in line ofsaid piston and adapted to contact therewith when said piston moves in the guide.

5. The combination, with a table provided with a plurality of cartridge-holders, means to rotate said table intermittently, a ventdetector and means to reciprocate said ventdeteetor, theposition of the vent-detector being such that when the table is at rest it is in line with a cartridge-holder.

6. The combination, with a table provided, with a plurality of cartridge-holders, means to rotate said table intermittently, a ventdetector and means to reciprocate said ventdetector, the position of the vent-detector being such that when the table is at rest it is in line with a cartridge-holder, and means adapted to hold said cartridge in the holder in lme with the ventdetector.

7. The combination, with a table provided with a plurality of cartridge-holders, means to rotate said table intermittently, a ventdetector and meansto reciprocate said ventdetector, the position of the vent-detector being such that when the table is at rest it is in line with a cartridge-holder, a guide ad apt ed to hold the cartridge in said holder in line with the vent-detector.

8. The combination, with a table, provided with a plurality of cartridge-holders, means to rotate said table intermittently, an

electric circuit, normally open, there being a ClIClll'D-CIOSGI in said circult, means to reciprocate said circuit-closer, said circuit-closer being connected whereby when the circuitcloser in its reciprocation meets an obstruction the circuit is closed, the position of the circuitcloser being such that when the table is at rest it 1s in line with a cartridge-holder.

9. The combination, with a table provided with a plurality of cartridge-holders, means to rotate said table intermittently, a circuitcloser, and means to reciprocate said circuitcloser, an electric circuit controlled by said circuit-closer the position of the circuitcloser being such that when the table is at rest it is in line with a cartridge-holder, and

means adapted to hold said cartridge in the holder in line with the circuit-closer.

10. The combination, with a table provided with a plurality of-cartridge-holders,

means to rotate said table intermittently, a

circuit-closer and means toreciprooate said c1rcu1t-closer, an electrlc circult controlled by said circuit-closer the position of the circuit closer being such that when thetable is at rest it is in line with the cartridge-holder, a

guide ada ted to hold the cartridge in said holder in ine with the circuit-closer.

11. The combination, with a table, provided with a plurality of cartridge-holders,

means to rotate said table intermittently, an electric'circuit, normally open, there being a circuit-closer in said circuit,- means to reciprocate said circuit-closer when said table is at rest, said eircuitcloser having connection whereby when the circuit-closer in its re-- rocate said circuit-closer when said-table is at rest, said circuit-closer having connectionwhereby when the circuit-closer in its reciprocation meets an obstruction the circuit is closed, the position'of the circuit-closer being such that when the table is at rest it is in line with a cartridge-holder, and a uide adapted to hold the cartridges in said older in line with the circuit-closer.

13. The combination, with a table vided with a plurality of cartridge-hol ers, means to rotate said table intermittently, a

circuit-closer an electric circuit controlled by said circuit-closer and means to reciprocate said cirouit-closer, the position of the circuitcloser being'such that when the'table is at rest it is in line with the cartridge-holder, a guide ada ted to hold the cartridges in said holder in he with the circuit-closer.

In testimony of which invention Ihave hereunto set my hand, at Westpoint, on this 2d day of September, 1904. 1

ORMOND' M. LISSAK. Witnesses:

WM. WARD, F. W. CoE. 

